<template>
  <div>
    <el-card>
      <el-form :inline="true" class="form">
        <el-form-item label="用户名：">
          <el-input placeholder="请输入要搜索的用户名" v-model="keyword" />
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="search" :disabled="keyword ? false : true">搜索</el-button>
          <el-button type="info" @click="reset">重置</el-button>
        </el-form-item>
      </el-form>
    </el-card>
    <!-- table展示用户信息 -->
    <el-card style="margin: 10px 0px;">
      <el-button type="primary" icon="Edit" @click="addUser">添加用户</el-button>
      <el-button type="danger" icon="Delete" :disabled="selectIdArr.length ? false : true"
        @click="deleteSelectUser">批量删除</el-button>
      <el-table @selection-change="selectChange" border style="margin: 10px 0px;" :data="userArr">
        <el-table-column type="selection" width="55" align="center"></el-table-column>
        <el-table-column type="index" label="#" width="120" align="center"></el-table-column>
        <el-table-column label="ID" align="center" prop="id"></el-table-column>
        <el-table-column label="用户名字" align="center" prop="username" show-overflow-tooltip></el-table-column>
        <el-table-column label="用户名称" align="center" prop="name" show-overflow-tooltip></el-table-column>
        <el-table-column label="用户角色" align="center" prop="roleName" show-overflow-tooltip></el-table-column>
        <el-table-column label="创建时间" align="center" prop="createTime"></el-table-column>
        <el-table-column label="更新时间" align="center" prop="updateTime" show-overflow-tooltip></el-table-column>
        <el-table-column label="操作" width="300px" align="center">
          <template #="{ row, $index }">
            <el-button type="warning" size="small" icon="User" @click="setRole(row)">分配角色</el-button>
            <el-button type="primary" size="small" icon="Edit" @click="updateUser(row)">编辑</el-button>
            <el-popconfirm :title="`你确定要删除${row.username}?`" width="260px" @confirm="deleteUser(row.id)">
              <template #reference>
                <el-button type="danger" size="small" icon="Delete">删除</el-button>
              </template>
            </el-popconfirm>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination v-model:current-page="pageNo" v-model:page-size="pageSize" :page-sizes="[5, 10, 15, 20]"
        :background="true" layout="prev, pager, next, jumper, ->, total, sizes" :total="total"
        @current-change="getHasUser" @size-change="handler" />
    </el-card>
    <!-- 抽屉结构:完成添加新的用户账号|更新已有的账号信息 -->
    <el-drawer v-model="drawer">
      <template #header>
        <h4>{{ userParams.id ? '更新用户' : '添加用户' }}</h4><!-- 头部标题:将来文字内容应该动态的 -->
      </template>
      <template #default><!-- 身体部分 -->
        <div>
          <el-form :model="userParams" :rules="rules" ref="formRef">
            <el-form-item label="用户姓名" prop="username">
              <el-input placeholder="请您输入用户姓名" v-model="userParams.username"></el-input>
            </el-form-item>
            <el-form-item label="用户昵称" prop="name">
              <el-input placeholder="请您输入用户昵称" v-model="userParams.name"></el-input>
            </el-form-item>
            <el-form-item label="用户密码" prop="password" v-if="!userParams.id">
              <el-input placeholder="请您输入用户密码" v-model="userParams.password"></el-input>
            </el-form-item>
          </el-form>
        </div>
      </template>
      <template #footer> <!-- 尾部份 -->
        <div style="flex: auto">
          <el-button @click="cancel">取消</el-button>
          <el-button type="primary" @click="save">确定</el-button>
        </div>
      </template>
    </el-drawer>
    <!-- 抽屉结构:用户某一个已有的账号进行职位分配 -->
    <el-drawer v-model="drawer1">
      <template #header>
        <h4>分配角色(职位)</h4>
      </template>
      <template #default>
        <el-form>
          <el-form-item label="用户姓名">
            <el-input v-model="userParams.username" :disabled="true"></el-input>
          </el-form-item>
          <el-form-item label="职位列表">
            <div>
              <el-checkbox v-model="checkAll" :indeterminate="isIndeterminate" @change="handleCheckAllChange">
                全选
              </el-checkbox>
              <el-checkbox-group v-model="userRole" @change="handleCheckedCitiesChange">
                <el-checkbox v-for="(role, index) in allRole" :key="index" :label="role">
                  {{ role.roleName }}
                </el-checkbox>
              </el-checkbox-group>
            </div>
          </el-form-item>
        </el-form>
      </template>
      <template #footer>
        <div style="flex: auto">
          <el-button @click="drawer1 = false">取消</el-button>
          <el-button type="primary" @click="confirmClick">确定</el-button>
        </div>
      </template>
    </el-drawer>

  </div>
</template>

<script lang='ts' setup>
import useLayOutSettingStore from '@/store/modules/setting'
import { ref, onMounted, reactive, nextTick } from 'vue';
import { reqSelectUser, reqRemoveUser, reqUserInfo, reqAddOrUpdateUser, reqAllRole, reqSetUserRole } from '@/api/acl/user'
import type { SetRoleData, UserResponseData, Records, User, AllRoleResponseData, AllRole } from '@/api/acl/user/type';
import { ElMessage } from 'element-plus';

//默认页码
let pageNo = ref<number>(1);
//一页展示几条数据
let pageSize = ref<number>(5);
//用户总个数
let total = ref<number>(0);
//存储全部用户的数组
let userArr = ref<Records>([]);
//控制分配角色抽屉显示与隐藏
let drawer = ref<boolean>(false);
//准备一个数组存储批量删除的用户的ID
let selectIdArr = ref<User[]>([]);
//收集用户信息的响应式数据
let userParams = reactive<User>({
  username: '',
  name: '',
  password: ''
});
//获取form组件实例
let formRef = ref<any>();
//控制分配角色抽屉显示与隐藏
let drawer1 = ref<boolean>(false);
//存储全部职位的数据
let allRole = ref<AllRole>([]);
//当前用户已有的职位
let userRole = ref<AllRole>([]);
//定义响应式数据:收集用户输入进来的关键字
let keyword = ref<string>('')
//组件挂载完毕
onMounted(() => {
  getHasUser()
})

//获取全部已有的用户信息
const getHasUser = async (pager = 1) => {
  pageNo.value = pager
  let res: UserResponseData = await reqUserInfo(pageNo.value, pageSize.value, keyword.value);
  if (res.code == 200) {
    total.value = res.data.total;
    userArr.value = res.data.records;
  }
}
//分页器下拉菜单的自定义事件的回调
const handler = () => {
  getHasUser();
}

//添加用户按钮的回调
const addUser = () => {
  //抽屉显示出来
  drawer.value = true;
  //清除遗留的信息
  Object.assign(userParams, {
    id: 0,
    username: '',
    name: '',
    password: ''
  })
  //方法1： 清除上一次的错误的提示信息
  // nextTick(() => {
  //   formRef.value.clearValidate('username');
  //   formRef.value.clearValidate('name');
  //   formRef.value.clearValidate('password');
  // });
  //方法2： 清除上一次的错误的提示信息
  formRef.value?.clearValidate('username');
  formRef.value?.clearValidate('name');
  formRef.value?.clearValidate('password');
  //方法3： 清除上一次的错误的提示信息  
  // formRef.value.resetFields();    // 重置该表单项，将其值重置为初始值，并移除校验结果
}

//更新已有的用户按钮的回调
//row:即为已有用户的账号信息
const updateUser = (row: User) => {
  //抽屉显示出来
  drawer.value = true;
  //存储收集已有的账号信息
  Object.assign(userParams, row);
  //清除上一次的错误的提示信息
  nextTick(() => {
    formRef.value.clearValidate('username');
    formRef.value.clearValidate('name');
  });
}

//保存按钮的回调
const save = async () => {
  //点击保存按钮的时候,务必需要保证表单全部复合条件在去发请求
  await formRef.value.validate()
  //保存按钮:添加新的用户|更新已有的用户账号信息
  let result: any = await reqAddOrUpdateUser(userParams);
  //添加或者更新成功
  if (result.code == 200) {
    //关闭抽屉
    drawer.value = false;
    //提示消息
    ElMessage({ type: 'success', message: userParams.id ? '更新成功' : '添加成功' });
    //获取最新的全部账号的信息
    getHasUser(userParams.id ? pageNo.value : 1);
    //浏览器自动刷新一次
    // window.location.reload();
  } else {
    //关闭抽屉
    drawer.value = false;
    //提示消息
    ElMessage({ type: 'error', message: userParams.id ? '更新失败' : '添加失败' });
  }
}
//取消按钮的回调
const cancel = () => {
  //关闭抽屉
  drawer.value = false;
}

//校验用户名字回调函数
const validatorUsername = (rule: any, value: any, callBack: any) => {
  //用户名字|昵称,长度至少五位
  if (value.trim().length >= 5) {
    callBack();
  } else {
    callBack(new Error('用户名字至少五位'))
  }
}
//校验用户名字回调函数
const validatorname = (rule: any, value: any, callBack: any) => {
  //用户名字|昵称,长度至少五位
  if (value.trim().length >= 5) {
    callBack();
  } else {
    callBack(new Error('用户昵称至少五位'))
  }
}
const validatorPassword = (rule: any, value: any, callBack: any) => {
  //用户名字|昵称,长度至少五位
  if (value.trim().length >= 6) {
    callBack();
  } else {
    callBack(new Error('用户密码至少六位'))
  }
}

//表单校验的规则对象
const rules = {
  //用户名字
  username: [{ required: true, trigger: 'blur', validator: validatorUsername }],
  //用户昵称
  name: [{ required: true, trigger: 'blur', validator: validatorname }],
  //用户的密码
  password: [{ required: true, trigger: 'blur', validator: validatorPassword }],
}

//分配角色按钮的回调
const setRole = async (row: any) => {
  //存储已有的用户信息
  Object.assign(userParams, row);
  let res = await reqAllRole((userParams.id as number))
  if (res.code == 200) {
    //存储全部的职位
    allRole.value = res.data.allRolesList;
    //存储当前用户已有的职位
    userRole.value = res.data.assignRoles;
    //抽屉显示出来
  }
  drawer1.value = true;
}
//收集顶部复选框全选数据
const checkAll = ref<boolean>(false);
//控制顶部全选复选框不确定的样式
const isIndeterminate = ref<boolean>(true);
//顶部的全部复选框的change事件
const handleCheckAllChange = (val: boolean) => {
  //val:true(全选)|false(没有全选)
  userRole.value = val ? allRole.value : [];
  //不确定的样式(确定样式)
  isIndeterminate.value = false
}
const handleCheckedCitiesChange = (value: string[]) => {
  const checkedCount = value.length
  //顶部复选框的勾选数据
  //代表:勾选上的项目个数与全部的职位个数相等，顶部的复选框勾选上
  checkAll.value = value.length === allRole.value.length;
  //不确定的样式
  isIndeterminate.value = checkedCount > 0 && checkedCount < allRole.value.length
}

//确定按钮的回调(分配职位)
const confirmClick = async () => {
  let data: SetRoleData = {
    userId: (userParams.id as number),
    roleIdList: userRole.value.map((item) => {
      return (item.id as number)
    })
  }
  //分配用户的职位
  let result: any = await reqSetUserRole(data);
  if (result.code == 200) {
    //提示信息
    ElMessage({ type: 'success', message: '分配职务成功' });
    //关闭抽屉
    drawer1.value = false;
    //获取更新完毕用户的信息,更新完毕留在当前页
    getHasUser(pageNo.value);

  }
}

//删除某一个用户
const deleteUser = async (userId: number) => {
  let res: any = await reqRemoveUser(userId);
  console.log(res, 'res')
  if (res.code == 200) {
    ElMessage({ type: 'success', message: '删除成功' });
    getHasUser(userArr.value.length > 1 ? pageNo.value : pageNo.value - 1);
  }
}

//table复选框勾选的时候会触发的事件
const selectChange = (value: any) => {
  selectIdArr.value = value;  // 触发事件以后把值传递给 selectIdArr 
}

//批量删除按钮的回调
const deleteSelectUser = async () => {
  //整理批量删除的参数 [1,2,3] 这种格式
  let idsList: any = selectIdArr.value.map((item) => {
    return item.id
  })
  //批量删除的请求
  let result: any = await reqSelectUser(idsList);
  if (result.code == 200) {
    ElMessage({ type: 'success', message: '删除成功' });
    getHasUser(userArr.value.length > 1 ? pageNo.value : pageNo.value - 1);
  }

}

//搜索按钮的回调
const search = () => {
  //根据关键字获取相应的用户数据
  getHasUser();
  //清空关键字
  keyword.value = '';
}

let settingStore = useLayOutSettingStore()
//重置按钮
const reset = () => {
    settingStore.refsh = !settingStore.refsh;
}

</script>
<style scoped>
.form {
  display: flex;
  justify-content: space-between;
}
</style>